You want to get the Shootmyash Smartash targets for your indoor facility but you want to mount it on the wall? Shootmyash has this video of being able to mount the smart targets to the wall by using existing off-the-shelf TV mounts eliminating the need to make your own... "Adapting 12in-32in / 30cm-81cm TV flat panel mounts for Airsoft targets. Tilt and rotation control for pellet deflection in small shooting areas."